Continued:
[core.git] / framework / main / classes / registry / format_upgrade / database / class_LocalFileDatabaseFormatUpgradeRegistry.php
diff --git a/framework/main/classes/registry/format_upgrade/database/class_LocalFileDatabaseFormatUpgradeRegistry.php b/framework/main/classes/registry/format_upgrade/database/class_LocalFileDatabaseFormatUpgradeRegistry.php
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+<?php
+// Own namespace
+namespace Org\Mxchange\CoreFramework\Registry\Upgrade\Format\Lfdb;
+/**
+ * A LocalFileDatabase database-format-upgrade registry
+ *
+ * @author             Roland Haeder <webmaster@ship-simu.org>
+ * @version            0.0.0
+ * @copyright  Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2016 Core Developer Team
+ * @license            GNU GPL 3.0 or any newer version
+ * @link               http://www.ship-simu.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+class LocalFileDatabaseFormatUpgradeRegistry extends BaseRegistry implements RegisterableFormatUpgrade {
+       /**
+        * Instance of this class
+        */
+       private static $registryInstance = null;
+
+       /**
+        * Protected constructor
+        *
+        * @return      void
+        */
+       protected function __construct () {
+               // Call parent constructor
+               parent::__construct(__CLASS__);
+       }
+
+       /**
+        * Singleton getter for self instance. This class has no factory pattern
+        * because here is no need for special parameters.
+        *
+        * @return      $registryInstance       Instance of this class
+        */
+       public final static function getRegistry () {
+               // Is an instance there?
+               if (is_null(self::$registryInstance)) {
+                       // Not yet, so create one
+                       self::$registryInstance = new LocalFileDatabaseFormatUpgradeRegistry();
+               } // END - if
+
+               // Return the instance
+               return self::$registryInstance;
+       }
+}
+
+// [EOF]
+?>